linux-kernel - [PATCH 3/5] ARM: OMAP1: Fix dpll1 reprogramming not actually allowed

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Message-Id: <1322364751-29980-4-git-send-email-jkrzyszt@tis.icnet.pl>
Date:	Sun, 27 Nov 2011 04:32:29 +0100
From:	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Paul Walmsley <paul@...an.com>, linux-omap@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
	Janusz Krzysztofik <jkrzyszt@....icnet.pl>
Subject: [PATCH 3/5] ARM: OMAP1: Fix dpll1 reprogramming not actually allowed

DPLL1 reprogramming to a different rate is actually blocked inside
omap1_select_table_rate(), resulting in the defalut rate of 60 MHz
always used instead of the one selected in .config. Fix it.

Created against linux-3.2-rc2, tested on Amstrad Delta on top of
linux-omap/fixes.

Signed-off-by: Janusz Krzysztofik <jkrzyszt@....icnet.pl>
---
 arch/arm/mach-omap1/clock.c |    4 ----
 1 files changed, 0 insertions(+), 4 deletions(-)

diff --git a/arch/arm/mach-omap1/clock.c b/arch/arm/mach-omap1/clock.c
index 3899176..962adbc 100644
--- a/arch/arm/mach-omap1/clock.c
+++ b/arch/arm/mach-omap1/clock.c
@@ -200,10 +200,6 @@ int omap1_select_table_rate(struct clk *clk, unsigned long rate)
 		if (ptr->xtal != ref_rate)
 			continue;
 
-		/* DPLL1 cannot be reprogrammed without risking system crash */
-		if (likely(dpll1_rate != 0) && ptr->pll_rate != dpll1_rate)
-			continue;
-
 		/* Can check only after xtal frequency check */
 		if (ptr->rate <= rate)
 			break;
-- 
1.7.3.4

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